Let's clarify: the idea that a general survey on travel planning habits explains the behavior of verifying identity documents mixes distinct categories of motivations.
It's like grouping vacation itinerary planning — which is exciting — with administrative tasks — which are often perceived as chores.
They are not the same types of behavior, and the survey does not capture this crucial divergence, making it too weak as evidence.
A hiking enthusiast who meticulously plans their routes and stages could very well be the one who forgets to verify their passport validity until the last minute, out of simple administrative procrastination.
The link should be considered conditional, as the absence of specific questions about the verification delay in the survey makes the inferential leap too large.